Allomogurnda insularis Allen, 2003
photo by Allen, G.R.

Family:  Eleotridae (Bully sleepers)
Max. size:  5.47 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Oceania: Goodenough Island in the D'Entrecasteaux Islands, Papu New Guinea.
Diagnosis:  Dorsal spines (total): 8-9; Dorsal soft rays (total): 9-10; Anal spines: 1-1; Anal soft rays: 8-9. Distinguished from it closely related species Allomogurnda montana on the basis of the several morphometric and color pattern differences: caudal peduncle more slender, with depth ranging from12.2-13.2% of SL, average 12.5% (vs. 13.0-13.9%, average 13.35%); second dorsal fin base length 16.6-20.9% SL (vs. 19.1-22.2% of SL) and anal fin base length12.7-15.7% of SL (vs. 16.0-18.9% of SL); darker spotting on the body and fins ; distinct dark bands on the head (vs. indistinct orange bands) and a darkish upper pectoral fin base with a distinctive small white to yellow spot on the uppermost part; and melanophores on mouth floor (area directly under the free portion of the tongue) mainly confined to the anterior half of this region, with a large unpigmented area next to the tongue base (vs. liberally covered) (Ref. 77038).
Biology:  Occurs in a flowing stream in an open rocky bed, with cobble, sand, gravel and rocky substrates. This fish is most common in sections protected from the main current (Ref. 77038).
IUCN Red List Status: Data deficient (DD); Date assessed: 03 December 2019 Ref. (130435)
Threat to humans:  harmless


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